FeNi-S@N-RGO nanosheet supercapacitor electrode material and preparation method thereof

A technology for supercapacitors and electrode materials, applied in the fields of electrochemistry and nanomaterials, can solve the problems of uncontrollable conductivity, difficulty in compounding, hindering the application of graphene, etc., to improve physical and chemical properties, good dispersion, and improve electrochemical performance. effect of nature

Active Publication Date: 2019-05-10
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] There are no gaps between the energy bands of graphene, and its conductivity cannot be fully controlled like that of conventional semiconductors
There are no active functi

Method used

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  • FeNi-S@N-RGO nanosheet supercapacitor electrode material and preparation method thereof
  • FeNi-S@N-RGO nanosheet supercapacitor electrode material and preparation method thereof
  • FeNi-S@N-RGO nanosheet supercapacitor electrode material and preparation method thereof

Examples

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Embodiment 1

[0032] A preparation method of FeNi-S@N-RGO nanosheet supercapacitor electrode material, comprising the following steps: First, 0.29ml of 1M NiCl 2 ·6H 2 O, 2.9ml of 1M Fe(NO 3 ) 3 9H 2 O, 11.2ml of 0.5M CH 4 N 2 O, 4ml of 0.1M C 6 h 5 Na 3 o 7 (The molar ratio is 1:20:5:2) in a 250ml beaker, and inject 160ml of deionized water. After it was completely dissolved, it was transferred to a 200ml polytetrafluoroethylene-lined stainless steel autoclave for the first step of hydrothermal reaction. The hydrothermal reaction temperature was 150°C and the hydrothermal reaction time was 24h. The obtained FeNi LDH samples were centrifuged, washed three times with water, and dried. Weigh 80mg of FeNiLDH sample, dissolve it in 40ml of ethanol, add 0.1125g of thioacetamide, mix evenly and transfer it to a 200ml polytetrafluoroethylene-lined stainless steel autoclave for the second hydrothermal reaction. The hydrothermal reaction temperature is 120°C; the hydrothermal reaction tim...

Embodiment 2

[0036] A FeNi-S@N-RGO nanosheet supercapacitor electrode material and a preparation method thereof, comprising the following steps: First, 0.29ml of 1M NiCl 2 ·6H 2 O, 2.9ml of 1M Fe(NO 3 ) 3 9H 2 O, 11.2ml of 0.5M CH 4 N 2 O, 4ml of 0.1MC 6 h 5 Na 3 o 7(The molar ratio is 1:20:5:2) in a 250ml beaker, and inject 160ml of deionized water. After it was completely dissolved, it was transferred to a 200ml polytetrafluoroethylene-lined stainless steel autoclave for the first step of hydrothermal reaction. The hydrothermal reaction temperature was 150°C and the hydrothermal reaction time was 24h. The obtained FeNi LDH samples were centrifuged, washed three times with water, and dried. Weigh 80mg of FeNiLDH sample, dissolve it in 40ml of ethanol, add 0.1125g of thioacetamide, mix evenly and transfer it to a 200ml polytetrafluoroethylene-lined stainless steel autoclave for the second hydrothermal reaction. The hydrothermal reaction temperature is 120°C, the reaction time is...

Embodiment 3

[0040] A FeNi-S@N-RGO nanosheet supercapacitor electrode material and a preparation method thereof, comprising the following steps: First, 0.29ml of 1M NiCl 2 ·6H 2 O, 2.9ml of 1M Fe(NO 3 ) 3 9H 2 O, 11.2ml of 0.5M CH 4 N 2 O, 4ml of 0.1M C 6 h 5 Na 3 o 7 (The molar ratio is 1:20:5:2) in a 250ml beaker, and inject 160ml of deionized water. After it was completely dissolved, it was transferred to a 200ml polytetrafluoroethylene-lined stainless steel autoclave for the first step of hydrothermal reaction. The hydrothermal reaction temperature was 150°C and the hydrothermal reaction time was 24h. The obtained FeNi LDH samples were centrifuged, washed three times with water, and dried. Weigh 80mg of FeNiLDH sample, dissolve it in 40ml of ethanol, add 0.1125g of thioacetamide, mix evenly and transfer it to a 200ml polytetrafluoroethylene-lined stainless steel autoclave for the second hydrothermal reaction. The hydrothermal reaction temperature is 120°C, the reaction time ...

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Abstract

The invention discloses a FeNi-S@N-RGO nanosheet supercapacitor electrode material and a preparation method thereof. The preparation method comprises the following steps of S1, mixing nickel chloridehexahydrate, ferric nitrate nonahydrate, carbamide, trisodium citrate dihydrate and deionized water, carrying out hydrothermal reaction in a hydrothermal reactor, carrying out centrifuging after reaction is finished, and carrying out washing and drying; S2, adding sample FeNi LDH obtained in the S1 through the hydrothermal reaction and thioacetamide to ethanol solution, carrying out the hydrothermal reaction, carrying out the centrifuging after the reaction is finished, and carrying out the washing and the drying to obtain a FeNi-S sample; and S3, mixing the FeNi-S sample and RGO, and then calcining a mixture in a tube furnace, thereby preparing the FeNi-S@N-RGO nanosheet electrode material. The preparation method provided by the invention is environmentally friendly. The preparation method is simple. The preparation method is convenient for mass production.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry and nanometer materials, and in particular relates to a FeNi-S@N-RGO nanosheet supercapacitor electrode material and a preparation method thereof. Background technique [0002] With the depletion of fossil energy and severe environmental problems, the development and utilization of renewable clean energy has become more and more important. Solar energy and wind energy are the most abundant and important renewable clean energy sources. Due to the variable and unstable natural characteristics of solar energy and wind energy, the power generation output of solar energy and wind energy also presents intermittent and changeable characteristics. In order to integrate these energy products into the grid, it is particularly important to use energy storage systems and new energy products to build a smart grid. The application research of energy storage devices with high power density and high ene...

Claims

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Application Information

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IPC IPC(8): H01G11/30H01G11/32H01G11/26H01G11/86B82Y30/00
CPCY02E60/13
Inventor 蒋继波孙瑶馨张小杰常宾刘凤茹康佳玲
Owner SHANGHAI INST OF TECH
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